3 Inch Digital Flow Meter, 21-264 GPM Inline NPT Thread Fuel Turbine Flowmeter with LCD Display for Water, Diesel, Gas Oil, Gasoline, and Other Liquids (5 Units: Gallon, QTS, PTS, L, m³)

This digital flow meter does the job well. It’s really large at 3 inch piping. It is easy to use and has good instructions. Installation is quite easy if you use the right Teflon tape with what liquid you are using with it. Overall, I think it’s a good product.

I cannot find a fitting with the correct thread size. I would like to use this at work but I don't know why none of the cam lock 3 inch ntp fittings work. It's currently a paper weight.

Flow meter does NOT use NPT (National Pipe Thread). Instead it uses a British thread which requires different fittings. The fitting cost more than the flow meter did.

This flowmeter arrive intact and in new condition. It arrived in a small box that also contained a soft cloth, instructions, and a fat roll of teflon tape. Like, a lot of teflon tape. The outside of the flowmeter is metal, albeit light weight. The inside components of it are predominately plastic. The instructions were easy to read and follow. Overall, this flow meter works as described and I recommend it.

Not NPT threaded. I have bought two of these. Thinking I just cross threaded the first one I bought a second. It is not NPT threaded. Makes a great paperweight.

JUNK !!!!! Worked for about 10 gallon and the display only shows the top 2/3 rds of the numbers on top line and the bottom 2/3rds of the numbers on the bottom line...... USED IT ONCE 2 DAYS AFTER RETURN CUT OFF DAY. JUNK....

It is advertised as NPT thread. I’ve been to 6 places that specialize in threaded parts and no one knows what this thread pattern is. Also, no fittings will connect to it.

Help! Cannot change units of measure, didn't receive a manual.